The GEM Hazard Team has always prioritized building tools to make hazard model development more rapid, more reproducible, and just plain easier. This has greatly increased our productivity and the quality of our work.

However, during the big push to create the GEM Hazard Mosaic, these tools were changing rapidly …

Earthquakes on dip-slip faults can produce land level changes that may last decades to millenia. Much of the time this is relatively harmless, but in coastal environments, the effects may be damaging.

Though violent ground shaking dominates our imaginations when we think of the effects of earthquakes, geologists often consider …

New guidelines for contribution to the GEM Global Active Faults Database have been published on GitHub. They are reproduced below.

The GEM GAF-DB is a public, open-data project and contribution is quite welcome.

The GEM GAF-DB is a compilation of a set of regional and global fault datasets; most of …

The Global Active Faults project of the GEM Foundation aims to produce a globally complete, reasonably homogeneous dataset of active faults on the Earth's surface for seismic hazard assessment. While most deforming regions of the world have some publicly available active fault datasets that I can stitch together, there are …

An earthquake of Mw=7.8 (USGS Earthquake Hazard Program) hit the pacific coast of Ecuador close to the border with Colombia on April 16th, 2016 (UTC) causing large damage and casualties in many localities along the Ecuadorian coast. The major city close to the epicentral area (according to the …